l33ching
when you type like a baby with a broken keyboard and it makes everyone laugh or scream
l33ching is when you write "k33p 1t g00d" and no one knows what you're talking about
your friend tries to l33ch and just types "l33ching is f00l3y"
you see someone l33ch and it's just "brb 1 w1ll 3at 0n3"